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onsemi SZMM3Z13VT1G
- Part No.:
- SZMM3Z13VT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
SZMM3Z13VT1G.pdf
- Description:
- DIODE ZENER 13.2V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:22
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Product details
Overview
SZMM3Z13VT1G from onsemi is a 13.25 V nominal Zener voltage regulator diode in SOD−323 package, rated for 300 mW steady-state power dissipation at 25°C, with 30 Ω maximum dynamic impedance at 5 mA test current and 0.1 μA reverse leakage at 8.0 V. It provides precision voltage reference and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the SZMM3Z13VT1G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±0.85 V), thermal coefficient (+7.0 mV/°C), AEC−Q101 qualification, Pb−free SOD−323 footprint compatibility, and ESD robustness (>16 kV HBM).
Technical Context
This device operates as a two-terminal shunt regulator, maintaining stable output voltage across varying load currents by conducting excess current to ground when input exceeds its Zener breakdown threshold. Its low 120 pF capacitance at 0 V bias and 1.0 V forward voltage at 10 mA support high-frequency noise suppression and low-loss biasing.
The SOD−323 package enables surface-mount integration on high-density PCBs, with thermal resistance of 416°C/W and junction temperature range from −65°C to +150°C. Its AEC−Q101 qualification confirms suitability for automotive subsystems requiring enhanced reliability and process control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.4 V min / 13.25 V nom / 14.1 V max @ IZT = 5 mA - defines regulation band for precision reference use |
| Zener Impedance (ZZT) | 30 Ω max @ IZT = 5 mA - ensures minimal voltage deviation under dynamic load changes |
| Power Dissipation (PD) | 300 mW @ TA = 25°C, derated 2.4 mW/°C above - sets thermal design limits for PCB layout |
| Reverse Leakage (IR) | 0.1 μA max @ VR = 8.0 V - guarantees low standby current in battery-powered systems |
| Temperature Coefficient | +7.0 mV/°C - quantifies voltage drift per degree ambient change for stability-critical circuits |
| Capacitance (C) | 120 pF @ VR = 0 V, f = 1 MHz - determines high-frequency filtering capability in RF or clock lines |
| ESD Rating | Class 3 (>16 kV) per HBM - supports handling without special ESD controls in assembly |
Pinout & Package
SZMM3Z13VT1G is housed in a Pb−free SOD−323 plastic package (Case 477−02), measuring 1.7 mm × 1.25 mm × 0.9 mm, with cathode indicated by a polarity band. Mounting position is unrestricted; maximum soldering temperature is 260°C for 10 seconds.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener voltage reference terminal | Connected to regulated node; voltage measured relative to anode; polarity band identifies this terminal |
| 2 (Anode) | Reference ground return path | Typically tied to system ground or lower-potential rail; completes shunt regulation current path |
Key Features
| Feature | Design Value |
|---|---|
| AEC−Q101 qualified | Validated for automotive applications including infotainment power rails and sensor bias networks |
| 120 pF capacitance at 0 V | Enables effective high-frequency bypassing without adding discrete capacitors in compact layouts |
| 300 mW power rating in 1.7 mm × 1.25 mm footprint | Delivers higher power density than larger SOD-123 or DO-35 packages for miniaturized designs |
| −65°C to +150°C operating range | Supports deployment in under-hood automotive modules and industrial edge controllers |
| Pb−free, RoHS-compliant construction | Meets global environmental compliance requirements without compromising solderability or reliability |
Applications
| Smartphone Power Management | Automotive Cabin Sensor Biasing |
|---|---|
|
Use Scenario: Providing stable 13.25 V reference for analog front-end ICs in smartphone camera modules. IC Role / Device Role / Timing Role: Shunt voltage reference and transient clamp protecting image signal chain from supply ripple. Use Value: Tight ±0.85 V Zener tolerance and 30 Ω impedance ensure <1% reference error under load variation. |
Use Scenario: Biasing thermistor-based cabin temperature sensors in HVAC control units. IC Role / Device Role / Timing Role: Precision voltage reference for ADC input scaling in automotive microcontrollers. Use Value: +7.0 mV/°C tempco allows predictable compensation; AEC−Q101 qualification ensures field reliability. |
| Industrial IoT Node Voltage Reference | USB-C PD Port Protection |
|
Use Scenario: Generating accurate 13.25 V reference for isolated DC-DC feedback loops in wireless sensor nodes. IC Role / Device Role / Timing Role: Primary voltage reference in secondary-side regulation circuitry. Use Value: 0.1 μA leakage at 8.0 V minimizes quiescent current drain in battery-operated edge devices. |
Use Scenario: Overvoltage clamping on USB-C power delivery bus lines during fault conditions. IC Role / Device Role / Timing Role: Fast-response shunt protector limiting transient spikes to safe levels. Use Value: 300 mW rating and 416°C/W thermal resistance enable brief surge absorption without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B13,115 | 13 V nominal, 400 mW rating, SOD-323, ±5% tolerance (vs. SZMM3Z13VT1G's ±0.85 V), no AEC−Q101 | General-purpose consumer electronics only; not qualified for automotive environments | Select when cost sensitivity outweighs automotive compliance and tighter voltage tolerance |
| MMSZ5242B-TP | 13 V nominal, 500 mW rating, SOD-123, ±5% tolerance, 150 pF capacitance, no AEC−Q101 | Requires larger PCB area; higher capacitance limits high-frequency performance | Choose when higher power margin is needed and board space permits SOD-123 footprint |
Compared with BZX384-B13,115 and MMSZ5242B-TP, SZMM3Z13VT1G offers superior voltage accuracy (±0.85 V vs. ±5%), automotive qualification, and smaller 1.7 mm × 1.25 mm footprint-making it optimal for safety-critical or space-constrained designs where regulation stability and reliability are prioritized.
Availability
SZMM3Z13VT1G is available at Aetrix Electronics and suitable for smartphone power management, automotive cabin sensor biasing, and industrial IoT node voltage reference requiring stable component supply, consistent lead times, and full traceability.
Supply support for SZMM3Z13VT1G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi (Nasdaq: ON) is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
SZMM3Z13VT1G belongs to the MM3ZxxxT1G/SZMM3ZxxxT1G series of 300 mW Zener regulators designed specifically for high-density portable and automotive electronics where precision, small size, and reliability are essential.
FAQ
What is the Zener voltage tolerance of SZMM3Z13VT1G?
The SZMM3Z13VT1G has a Zener voltage specification of 12.4 V minimum, 13.25 V nominal, and 14.1 V maximum at 5 mA test current-corresponding to a total tolerance of ±0.85 V. This tight tolerance enables precise voltage referencing in analog circuits without external trimming, and is confirmed in the Electrical Characteristics table on page 2 of the official onsemi datasheet.
Is SZMM3Z13VT1G suitable for automotive applications?
Yes, SZMM3Z13VT1G is AEC−Q101 qualified and PPAP capable, with the "SZ" prefix indicating compliance for automotive and other applications requiring unique site and process controls. Its −65°C to +150°C junction temperature range and robust ESD rating (>16 kV HBM) further validate its use in engine control units, body electronics, and ADAS sensor interfaces.
What is the thermal resistance of SZMM3Z13VT1G?
The thermal resistance from junction-to-ambient (RJA) for SZMM3Z13VT1G is 416°C/W under standard FR-4 board conditions (single-sided copper, 1 cm² pad). This value directly informs thermal design margins: at 300 mW dissipation, junction temperature rise above ambient is approximately 125°C-requiring careful PCB copper area allocation for sustained operation.
Does SZMM3Z13VT1G have a specified forward voltage?
Yes, SZMM3Z13VT1G specifies a maximum forward voltage (VF) of 0.9 V at 10 mA forward current, as stated in the Electrical Characteristics table. This parameter is relevant for reverse-polarity protection configurations or when used as a low-drop rectifier in auxiliary bias paths, though its primary function remains Zener regulation in reverse bias.
How does the temperature coefficient affect SZMM3Z13VT1G performance?
The SZMM3Z13VT1G has a positive temperature coefficient of +7.0 mV/°C, meaning its Zener voltage increases linearly with rising junction temperature. This behavior must be accounted for in precision reference designs operating across wide ambient ranges-e.g., a 50°C rise causes ~350 mV increase in VZ, which may require compensation in high-accuracy ADC reference circuits.
SZMM3Z13VT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 13.2 V
- Tolerance:
- ±2.2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
SZMM3Z13VT1G FAQ
1.How can I place an order for SZMM3Z13VT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM3Z13VT1G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SZMM3Z13VT1G reliable?
The price and inventory of SZMM3Z13VT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM3Z13VT1G is usually 5 days.
3.What payment methods are accepted for SZMM3Z13VT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM3Z13VT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM3Z13VT1G?
SZMM3Z13VT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM3Z13VT1G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SZMM3Z13VT1G?
For technical support, including SZMM3Z13VT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM3Z13VT1G requirements.
6.How does Aetrix verify that SZMM3Z13VT1G is sourced from the original manufacturer or authorized distributors?
All SZMM3Z13VT1G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SZMM3Z13VT1G meets industry standards.
7.What is the process for return or replacement of SZMM3Z13VT1G?
All SZMM3Z13VT1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM3Z13VT1G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SZMM3Z13VT1G part is unused and in its original packaging.
Return procedure for SZMM3Z13VT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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